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WO1999000192A1 - Filtre pour air pur - Google Patents

Filtre pour air pur Download PDF

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Publication number
WO1999000192A1
WO1999000192A1 PCT/EP1998/003867 EP9803867W WO9900192A1 WO 1999000192 A1 WO1999000192 A1 WO 1999000192A1 EP 9803867 W EP9803867 W EP 9803867W WO 9900192 A1 WO9900192 A1 WO 9900192A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter according
foam
ion exchange
air
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP1998/003867
Other languages
German (de)
English (en)
Inventor
Ernest De Ruiter
Jonas TÖRNBLOM
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mbh Filtration & Co KG GmbH
Original Assignee
Mbh Filtration & Co KG GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mbh Filtration & Co KG GmbH filed Critical Mbh Filtration & Co KG GmbH
Priority to DE59807396T priority Critical patent/DE59807396D1/de
Priority to EP98938641A priority patent/EP0991470B1/fr
Priority to US09/446,732 priority patent/US6402819B1/en
Priority to JP50527899A priority patent/JP2002506389A/ja
Publication of WO1999000192A1 publication Critical patent/WO1999000192A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J47/00—Ion-exchange processes in general; Apparatus therefor
    • B01J47/018—Granulation; Incorporation of ion-exchangers in a matrix; Mixing with inert materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/42—Foam filter materials

Definitions

  • EP-A-0 340 542 adsorption filter which consists of a support frame with a coating of adsorber particles.
  • the adsorber particles fixed to the support frame clean undesirable substances through gases or liquids that pass through the filter.
  • Such cleaning processes always represent a balance between the stationary and the moving phase.
  • the known adsorption filters represent a sufficient means to effect cleaning.
  • Phenol can be easily and effectively removed from gas mixtures using conventional adsorption filters.
  • Such conventional adsorption filters have adsorption particles made of activated carbon, for example.
  • the volatile substances, such as S0 2 and NH 3 behave completely differently. They are only incompletely removed by the conventional adsorption filter and there is such a balance with the
  • One way to improve this insufficient adsorption is to impregnate the activated carbon with acidic or basic additives. For example, if you want to remove NH 3 from a gaseous mixture, one can
  • Impregnation with phosphoric acid should be made, on the other hand S0 2 are removed, a previous impregnation with K 2 C0 3 is available.
  • the undesirable substances enter into a chemical reaction with the impregnating agent and are thus permanently and irreversibly removed from the gas mixture.
  • the impregnating agent is consumed, with the result that after one Exhaustion of the cleaning capacity is determined for a certain time.
  • the impregnation makes it possible to provide filters with an improved cleaning effect.
  • the impregnation of the impregnated adsorber particles affects the original adsorption capacity of these particles both with regard to the capacity and the adsorption kinetics of the adsorber particles So, compared to their original performance, undesired substances from gas mixtures are removed more slowly and in a smaller amount.
  • the adsorber particles find a new balance between the originally existing ads orption and the chemical adsorption of the impregnating substance on With a large amount of impregnating substance, a considerable deterioration of the adsorption is found, especially if there is an unfavorable distribution of this impregnating substance Accept the early exhaustion of the impregnating substance In principle, the task with pure air is very complex
  • the invention has for its object to provide a filter that with good
  • the carrier is preferably a large-pore reticulated polymer foam, the webs of which are coated with a layer of ion exchangers.
  • the carrier can also be flat and made of a highly air-permeable textile carrier material, e.g. woven, knitted or nonwoven, on which the Ion exchange balls are fixed in the same way as the so-called ball carbon is known for activated carbon balls (DE-C-33 04 349)
  • the ion exchange spheres can be strongly basic anion exchangers or strongly acidic cation exchangers.
  • the known ion exchangers are known (literature reference: Winnacker-K ⁇ chler, 4 ed., Vol. 1 and Rompp 9 ed. V 1995).
  • the beads consist of porous or swellable polymers, predominantly based on styrene, mostly crosslinked in the form of styrene / divinylbenzene polymers, which carry chemical groups with exchangeable ions that enable the desired exchange.
  • the chemical groups are often sulfone groups, while anion exchangers are quaternary ammonium groups contain ion exchangers with these chemical
  • Ion exchangers are used almost exclusively in wet form for the cleaning of wet media, in particular for water cleaning. It is therefore surprising and not to be expected for the expert that ion exchangers also from air and even in a very dry atmosphere with less than 40%. Relative humidity allow an extraordinarily high separation performance, and presumably in the form of microdroplets or microscopic ions, formaldehyde and other compounds that can only be perceived by the smell but cannot be analytically detected
  • Large ponge reticulated polymer foams are known. Usually it is polyurethane (PUR foams) Large pore reticulated PU foams have a weight of 20 to 60 g and pores of 1.5 to 3 mm. The pore size is usually also in ppi, ie pores indicated per inch and accordingly have a porosity of 8 to 30 ppi for the purposes of the invention. Carriers for the ion exchange spheres are also suitable for large-ponge reticulated polyolefin foams, which consist in particular of polymers and polypropylene the Polyolehn foam is the same as that listed above in connection with the PUR foam. Particularly suitable are Porvolehn foams which are hydrophilically modified by additional additives. Such reticulated polyolefin foams are known. They were developed, for example, by the Troplast company in Troisdorf placed on the market
  • Reticulated foams do not have any walls, but the best are predominantly from a lattice: from bars, the cages have a diameter of about
  • REPLACEMENT BLA ⁇ (RULE 26) Form 1 to 5 mm After coating with ion exchange balls and possibly with adsorber particles, the regenerated foams have a relatively high rigidity
  • the ion exchange spheres can be attached directly to them or an adhesive is required.
  • the latter is used in particular for air-permeable textile carriers or the reticulated PUR foams. Which adhesives or adhesives are used depends in particular on the for the used filters envisage regeneration of the ion exchangers. Known adhesives are suitable
  • Dispersion pusher in particular based on acrylic acid derivatives, polyurethanes or polyvinyl acetates, as well as hot melt adhesives or adhesive systems.
  • the latter include the Impran ⁇ l ® -H ⁇ gh-Sol ⁇ d-PUR-Reakt ⁇ v area from BAYER ® , in particular from the components Impranil ® HS 62 and Impraf ⁇ x ® C While the adhesive mass the textile support material, preferably by means of a template as a punctiform
  • the adhesive is applied to the foam as usual by drinking, e.g. with the adhesive dispersion and squeezing. This means that the chemical resistance of the foam, in particular its hydrolysis resistance, is essentially determined by the adhesive applied.
  • a hydrolysis-resistant adhesive is, for example, in Form of
  • Levacast 43131 N from BAYER ® AG is available. It is a polymeric isocyanate that is cross-linked by moisture and was developed for the production of shoe upper materials. When using this product, it is recommended to dry the ion exchanger only to the point of free-flow, because the residual moisture crosslinking is required After the ion exchange balls have been sprinkled on, the adhesive hardens completely within a few hours. This has the advantage that no temperature increase is required for crosslinking
  • an adhesive can usually be dispensed with because the polyolefin grid becomes sufficiently sticky when heated to permanently fix (dried) ion exchangers to it without the need for glue Preventing the carrier from sagging. This is done by first completely filling the polyolefin foam with the ion exchange balls, the “stuffed” carrier can no longer collapse or shrink away
  • Ion exchange grains tolerate the temperature at which the polymeric carrier becomes sticky. For a polyolefin, this temperature is around 155 to 160 ° C. Ion exchangers are usually offered with approx. 50% moisture. When drying, shrinkage therefore occurs, which is particularly the case with only weakly cross-linked gel types. This can occur when the pores are not large enough
  • the diameter should therefore be at least three times the particle diameter.
  • the filters according to the invention loaded with strongly basic anion exchangers are particularly suitable for cleaning air streams from gaseous acidic ones
  • Substances especially sulfur dioxide, to produce clean air.
  • they also enable the removal of formaldehyde and prevent the smell that adheres to activated carbon filters and is perceptible in the air flowing through. This smell is no longer perceptible in the clean air if a filter according to the invention loaded with strongly basic anion exchangers is connected downstream on the activated carbon filter.
  • the filters according to the invention loaded with strongly acidic cation exchangers enable the effective removal of gaseous basic substances, in particular ammonia, from air streams.
  • the two types of filters for clean air can also be connected in series. It is possible to encase the large-pore reticulated polymer foam, both with anion exchange beads and with cation exchange beads, but is not recommended if the filters are to be regenerated in the usual way with aqueous media, because it is known that both types use different means.
  • Example 2 A 20x10x2 cm sheet of reticulated PUR foam with 8 to 10 ppi

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

L'invention concerne un filtre pour air pur, comportant un support bidimensionnel ou tridimensionnel fortement perméable à l'air et constitué d'une mousse polymère réticulée à pores de grande dimension, dont les parties jointives sont enrobées d'une couche de globules échangeurs d'ions.
PCT/EP1998/003867 1997-06-27 1998-06-24 Filtre pour air pur Ceased WO1999000192A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE59807396T DE59807396D1 (de) 1997-06-27 1998-06-24 Filter für reinluft
EP98938641A EP0991470B1 (fr) 1997-06-27 1998-06-24 Filtre pour air pur
US09/446,732 US6402819B1 (en) 1997-06-27 1998-06-24 Fresh air filter
JP50527899A JP2002506389A (ja) 1997-06-27 1998-06-24 清浄空気を得るためのフィルター

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19727295.9 1997-06-27
DE19727295A DE19727295A1 (de) 1997-06-27 1997-06-27 Filter für Reinluft

Publications (1)

Publication Number Publication Date
WO1999000192A1 true WO1999000192A1 (fr) 1999-01-07

Family

ID=7833793

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1998/003867 Ceased WO1999000192A1 (fr) 1997-06-27 1998-06-24 Filtre pour air pur

Country Status (5)

Country Link
US (1) US6402819B1 (fr)
EP (1) EP0991470B1 (fr)
JP (1) JP2002506389A (fr)
DE (2) DE19727295A1 (fr)
WO (1) WO1999000192A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002058926A (ja) * 2000-08-14 2002-02-26 Bridgestone Corp 脱臭フィルター材
JP2007317667A (ja) * 2000-09-12 2007-12-06 Donaldson Co Inc 低温度触媒工程用のエアフィルタ組立体
WO2010072333A1 (fr) * 2008-12-23 2010-07-01 Siltronic Ag Filtre pour l'élimination d'impuretés moléculaires à partir de gaz

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DE19931371A1 (de) * 1999-07-08 2001-01-11 Mhb Filtration Gmbh & Co Kg Filtermaterial für die Gasfiltration mit bioziden Eigenschaften
DE10013949A1 (de) * 2000-03-21 2001-09-27 Mhb Filtration Gmbh & Co Kg Adsorptives Filtermaterial
AU2001269476A1 (en) * 2000-07-13 2002-01-30 Bridgestone Corporation Deodorizing filter material
US7601262B1 (en) 2001-06-22 2009-10-13 Argonide Corporation Sub-micron filter
FR2835445B1 (fr) * 2002-02-07 2004-11-19 Air Liquide Utilisation d'un adsorbant sous forme de mousse solide pour la purification ou la separation de gaz
US7029516B2 (en) * 2002-10-24 2006-04-18 Georgia Tech Research Corporation Filters and methods of making and using the same
SE0300148D0 (sv) * 2003-01-22 2003-01-22 Camfil Ab Filter structure
JP4465347B2 (ja) * 2003-01-22 2010-05-19 カムフィル アクチボラゲッド フィルタ構造体、フィルタ構造体を備えたフィルタパネル及びフィルタ構造体を作製する方法
US9364572B2 (en) 2003-05-22 2016-06-14 Coating Systems Laboratories, Inc. Static fluid disinfecting systems and related methods
US9764264B2 (en) 2003-05-22 2017-09-19 Coating Systems Laboratories, Inc. Ballast water treatment systems
US7597745B2 (en) * 2004-04-28 2009-10-06 Foamex Innovations Operating Company Filter materials for adsorbing hydrocarbons
US20060289003A1 (en) * 2004-08-20 2006-12-28 Lackner Klaus S Laminar scrubber apparatus for capturing carbon dioxide from air and methods of use
US20060051274A1 (en) * 2004-08-23 2006-03-09 Wright Allen B Removal of carbon dioxide from air
JP4791049B2 (ja) * 2005-02-16 2011-10-12 ニチアス株式会社 エアフィルタ用シート及びその製造方法並びにエアフィルタ
US9266051B2 (en) 2005-07-28 2016-02-23 Carbon Sink, Inc. Removal of carbon dioxide from air
CN102160957A (zh) 2005-07-28 2011-08-24 乞力马扎罗能量公司 从空气中除去二氧化碳
RU2378035C1 (ru) * 2005-09-12 2010-01-10 Аргонайд Корпорейшн Электростатический воздушный фильтр
US7390343B2 (en) * 2005-09-12 2008-06-24 Argonide Corporation Drinking water filtration device
AU2007233275B2 (en) 2006-03-08 2012-07-26 Carbon Sink, Inc. Air collector with functionalized ion exchange membrane for capturing ambient CO2
DE102006033541A1 (de) * 2006-07-20 2008-01-24 Artemis Control Ag Adsorptives Filtermaterial
KR20090086530A (ko) * 2006-10-02 2009-08-13 글로벌 리서치 테크놀로지스, 엘엘씨 공기로부터 이산화탄소를 추출하는 방법 및 장치
EP2139584A4 (fr) 2007-04-17 2011-05-18 Global Res Technologies Llc Captage de dioxyde de carbone (co<sb>2</sb>) dans l'air
CN101848754A (zh) 2007-11-05 2010-09-29 环球研究技术有限公司 从空气中除去二氧化碳
MX2010004447A (es) 2007-11-20 2010-05-13 Global Res Technologies Llc Colector de aire con membrana de intercambio ionico funcional para capturar co2 del ambinete.
MX339437B (es) 2008-02-19 2016-05-26 Global Res Technologies Llc Extraccion y formacion de complejos del dioxido de carbono.
WO2009149292A1 (fr) 2008-06-04 2009-12-10 Global Research Technologies, Llc Capteur d’air d’écoulement laminaire avec matériaux sorbants solides pour capturer le co2 ambiant
WO2010019608A1 (fr) * 2008-08-11 2010-02-18 Global Research Technologies, Llc Procédé et appareil pour éliminer de l’ammoniac d’un courant gazeux
US10478517B2 (en) 2008-09-19 2019-11-19 Fipak Research And Development Company Method and apparatus for purging unwanted substances from air
US9114338B2 (en) * 2008-09-19 2015-08-25 Fipak Research And Development Company Method and apparatus for purging unwanted substances from air
US8152899B2 (en) * 2008-09-19 2012-04-10 Francois Hauville Method and apparatus for purging unwanted substances from air
ES2546090T3 (es) * 2008-09-19 2015-09-18 Francois Hauville Procedimiento y aparato para purgar sustancias no deseadas del aire
TWI403350B (zh) * 2010-11-26 2013-08-01 Taiwan Textile Res Inst 過濾材及其製造方法
JP2015516184A (ja) * 2012-03-09 2015-06-11 フィパック・リサーチ・アンド・ディベロップメント・カンパニー 空気から不必要な物質を除去するための方法と装置
US9108968B2 (en) 2012-04-25 2015-08-18 Ppg Industries Ohio, Inc. Methods for producing 1,5,7-triazabicyclo[4.4.0]dec-5-ene by reaction of a disubstituted carbodiimide and dipropylene triamine
HK1208397A1 (en) 2012-06-27 2016-03-04 阿尔戈耐德公司 Aluminized silicious sorbent and water purification device incorporating the same
MX2015013714A (es) * 2013-03-26 2016-08-18 Qore Systems LLC Sistemas de desinfeccion de fluido estatico y metodos relacionados.
DE102016212056A1 (de) * 2016-07-01 2018-01-04 Mahle International Gmbh Filtermedium und Verfahren zur Herstellung eines solchen Filtermediums
WO2019161114A1 (fr) 2018-02-16 2019-08-22 Carbon Sink, Inc. Extracteurs à lit fluidisé pour la capture de co2 à partir d'air ambiant
DE102023110522A1 (de) 2023-04-25 2023-06-29 Mann+Hummel Gmbh Luftfiltermedien-Baugruppe mit Stapelfalten-Design

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002058926A (ja) * 2000-08-14 2002-02-26 Bridgestone Corp 脱臭フィルター材
JP2007317667A (ja) * 2000-09-12 2007-12-06 Donaldson Co Inc 低温度触媒工程用のエアフィルタ組立体
WO2010072333A1 (fr) * 2008-12-23 2010-07-01 Siltronic Ag Filtre pour l'élimination d'impuretés moléculaires à partir de gaz
DE102008062927A1 (de) 2008-12-23 2010-07-01 Siltronic Ag Filter zur Entfernung molekularer Verunreinigungen aus Gasen

Also Published As

Publication number Publication date
US6402819B1 (en) 2002-06-11
DE19727295A1 (de) 1999-01-07
DE59807396D1 (de) 2003-04-10
EP0991470B1 (fr) 2003-03-05
JP2002506389A (ja) 2002-02-26
EP0991470A1 (fr) 2000-04-12

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